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Discussion Starter #1
Hello having a prblem with truck its a 2002 dodge ram 5.9 4x4 battery went dead because ac was left on in truck (I have a problem with ac staying on with car off) so i charged the battery and now car will start fine but wont stay on i have to keep my foot on the gas for it to stay on. anyone ever have this problem? it almost like it doesnt know when to idle

thank you
 

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Check your Idle Air Control. Take it out and clean it good with a wire brush and carb. cleaner. See what that does.
 

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Get the battery checked. It may have buckled a cell won't hold a charge.

When you give it some throttle you raise the alt speed and increase the voltage from the battery.
 

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Went and got bat and alt checked they were fine but while I was there he told me that its the ECM or somthing like that, the computer needed to relearn how to idle to drive it for like 30 min and it should fix it and it did!! thank you for your replys
 
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